test/FrontendC++/2007-05-16-ReverseBitFieldCrash.cpp

   1 // RUN: %llvmgxx %s -emit-llvm -S -o -
   2
   3 #pragma reverse_bitfields on
   4 typedef unsigned long UINT32;
   5
   6 extern void abort(void);
   7
   8 typedef struct TestStruct
   9 {
  10   long  first: 15,
  11     second: 17;
  12 } TestStruct;
  13
  14 int main (int argc, char * const argv[]) {
  15
  16   TestStruct testStruct = {1, 0};
  17
  18   UINT32 dw = *(UINT32 *)(&testStruct);
  19
  20   if(!(dw & 0xFFFF))
  21     abort ();
  22
  23   return 0;
  24 }